FMS F13 / Bo White ported 5.3's - numbers inside
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I went back up to Alabama this weekend to gomer's place and we put a set of ported 5.3's on the car. The porting was all hand-done by Bo White and the heads looked beautiful, he did an amazing job. I will have pictures and video up later this evening.
Specs on the heads: Milled .019, 2.02 REV intake valves, backcut and swirl polished, production 1.55 exhaust valves, 218cc intake runner, 82cc exhaust runner, 61cc chambers.
Mods on the car besides the new heads: FMS F13 (230/232 .595/.585 112+2), LS6 intake, Grotyohann LT's, QTP dual cutout ORY, Jantzer TB, MTI lid, ASP pulley, free mods. I put down 400.05rwhp/384rwtq cutouts open cam-only, the only addition was the heads.
Cutouts open, full belts, air filter, everything... no dyno tricks:
![](http://www.slowls1.net/images/f13_heads.jpg)
Through the exhaust it put down ~425/400. With the filter off it put down 440. I would have liked to see some numbers without the belts, but with fresh headgaskets we didn't want to risk it.
Specs on the heads: Milled .019, 2.02 REV intake valves, backcut and swirl polished, production 1.55 exhaust valves, 218cc intake runner, 82cc exhaust runner, 61cc chambers.
Mods on the car besides the new heads: FMS F13 (230/232 .595/.585 112+2), LS6 intake, Grotyohann LT's, QTP dual cutout ORY, Jantzer TB, MTI lid, ASP pulley, free mods. I put down 400.05rwhp/384rwtq cutouts open cam-only, the only addition was the heads.
Cutouts open, full belts, air filter, everything... no dyno tricks:
![](http://www.slowls1.net/images/f13_heads.jpg)
Through the exhaust it put down ~425/400. With the filter off it put down 440. I would have liked to see some numbers without the belts, but with fresh headgaskets we didn't want to risk it.
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Was nice to see you again! I really had a good time doing the installs and tuning on your car and Tony's too. I was really impressed with those heads, you can't beat them for the money.
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A vid of the car on the dyno- please right-click, save as: http://www.slowls1.net/jlaw_f13_heads_dyno.wmv
Pics of the heads:
![](http://www.slowls1.net/images/heads1.jpg)
![](http://www.slowls1.net/images/heads2.jpg)
![](http://www.slowls1.net/images/heads3.jpg)
Pics of the heads:
![](http://www.slowls1.net/images/heads1.jpg)
![](http://www.slowls1.net/images/heads2.jpg)
![](http://www.slowls1.net/images/heads3.jpg)
![](http://www.slowls1.net/images/heads4.jpg)
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Glad the heads put down good #s for ya and nice to have met ya at the dyno. Great lookin color choice for the car and the wheels realy set it off. Get ya that cat-back and go terrorize the streets of FL
! Good #s on that tune gomer did on Tonys car too after the cam swap.
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Originally Posted by jlaw
I made 400.05/384 cam-only. I think I replied to that thread on bhamracing.
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Originally Posted by camaross383
What was your P to V clearance,with those heads milled .020 and the F13? Just curious, because I was thinking of getting this same cam.
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bo white did an awesome job on jlaw's heads and my throttle body.
big thanks to gomer and bo white for hooking me up. i'm very happy that my car is no longer stock and no longer at 310rwhp
big thanks to gomer and bo white for hooking me up. i'm very happy that my car is no longer stock and no longer at 310rwhp
![Headbang](https://ls1tech.com/forums/images/smilies2/headbang.gif)
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Originally Posted by sstony
bo white did an awesome job on jlaw's heads and my throttle body.
big thanks to gomer and bo white for hooking me up. i'm very happy that my car is no longer stock and no longer at 310rwhp![Headbang](https://ls1tech.com/forums/images/smilies2/headbang.gif)
big thanks to gomer and bo white for hooking me up. i'm very happy that my car is no longer stock and no longer at 310rwhp
![Headbang](https://ls1tech.com/forums/images/smilies2/headbang.gif)